#tbl td {
    width: 50px;
    height: 50px;
    border: 1px solid #ddd;
    text-align: center;
    background: #ddd;
    cursor: pointer;
}


/*tbl*/

#tbl .z-isLandmind {
    color: #f00;
}

#tbl .z-open {
    background: #fff;
}

#tbl .z-flag {
    background: #f00
}